CN104282496B - Electric contactor - Google Patents
Electric contactor Download PDFInfo
- Publication number
- CN104282496B CN104282496B CN201410328009.5A CN201410328009A CN104282496B CN 104282496 B CN104282496 B CN 104282496B CN 201410328009 A CN201410328009 A CN 201410328009A CN 104282496 B CN104282496 B CN 104282496B
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- Prior art keywords
- contact
- cantilever part
- electric contact
- movement
- electric
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/001—Means for preventing or breaking contact-welding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of electric contactor (10), including a pair of of first end (12), each first end includes the fixing piece (14) that at least one stationary electrical contacts (36) is arranged, stationary electrical contacts setting of the stationary electrical contacts on another first end；A pair of of the second end (16), including multiple settings insulator spacer (24) between setting electric conductor movement cantilever part (20,22), the multiple movement cantilever part；Each the second end includes respectively the mobile electric contact (38) towards corresponding stationary electrical contacts setting on the movement cantilever part of each the second end with one of association of the first end；The fixing piece and movement cantilever part are set as when the contacts are closed, by forming mutual expelling force backwards to the inverse current of setting movement cantilever part, to force movement cantilever part away from each other, to increase the active force between stationary electrical contacts and mobile electric contact.
Description
Technical field
The present invention relates to a kind of electric contactors, and especially (but being not limited to) is a kind of is applied in modern kilowatt-hour meter (voltameter)
High current switching contactor, i.e., it is so-called " intelligent kilowatt-hour meter ", in normal domestic use supply main voltage, (usually 100V is extremely
250V alternating current) in execute load break function.The invention further relates to the contactors of a high current switching, and the switch is in short circuit
When malfunction under require contact that melting welding does not occur.
The invention further relates to the two poles of the earth electric contactors, a single-phase electric contactor energized for zero curve firewire, one
Mobile electric contactor device, a kind of method preventing or limit electric contactor failure under contact closure condition, a kind of pass through prevent
Only or limitation rotation steps up to improve the method for contact closure and a kind of method for reducing contact wear.
Background technique
Under contact melted malfunction, electric contactor for " freedom " and non-metering current provide place.When load begins
Eventually under supply voltage state, it may occur however that dangerous shock hazard.Wish the disconnection that safety is carried out to circuit load.
Current existing electric contactor can 100 amperes or 200 amperes nearby satisfactorily switching nominal current with
Carry out cyclic switching.Switch with additive by preventing the special silver alloy contact of melting welding from bearing these.The side of switch
Edge or arm are configured to easily be actuated to execute switching function, while the self-heating of related nominal current being lost
It is reduced to minimum.
Most of electricity kilowatt-hour meter standard not only provides that persistent switch is molten without contact under satisfactory nominal current
The service life of weldering, also require appropriate short trouble state lower contact will not melting welding, and must be able to next execute drive receiving
It is disconnected after moving pulse.Under higher " dead short " state, switch contact can be with melting welding, but must keep undamaged.It changes
Sentence is talked about, and during " dead short ", melting substance cannot occur exploding or sputtering phenomenon, until fuse disconnects or powers off
Device is fallen off to be disconnected with making payload security with power supply.This short circuit must be up to six periods of AC AC power source during bearing.
For the electric kilowatt-hour meter in South America, household two-phase power supply is mentioned by heavy street side using the triaxial cable that converter provides
For place, every phase electricity is 115V relative to ground wire, and mutual phase difference is 180 degree.Medium-sized load on 115V alternating current is come
It says, each metering phase distributes electric energy to socket everywhere by ring main.However, all high power loads, such as do washing
Machine, dryer, heater, pool heater and air-conditioning are exchanged by two-phase 230V and are electrically connected, and maximum load is 200 amperes.This
Sample, kilowatt-hour meter need 200 amperes of firm two-stage contactors to execute load break function when needed.
In Europe and other most areas, mainstream power supply mode is single-phase 220V alternating current and 100 amperes, some close
120 amperes, to meet IEC62055031 specification.Equal system is used in South America and other a small number of areas, power supply mode is two-phase
230V and 200 ampere.The latter mainly follows ANSIC12.1 specifications of surveys.There are also some other specifications to have made safety restriction,
Such as UL508, ANSIC37.90.1, IEC68-2-6, IEC68-2-27, IEC801.3.
The British patent GB2413703 of BLP element company application provides a kind of biplate scheme, parallel moveable spring
Copper sheet includes the inside movable contact opposite with outside fixed contact.It is right each other that two opposite spring copper sheets pass through fixed contact
Together.In basic 100 amperes of switch, using two spring copper sheets and two fixed copper sheets, a total of four contact is formed, often
A parallel plate flows through 50 Ampere currents.
In the setting of another nominal current, 200 amperes of switches are formed, each spring copper sheet is separated into two equipped with spring
Sub-pieces, each sub-pieces each end be arranged movable contact.Each sub-pieces is one in a pair, across being fixed on it
In the corresponding fixed contact of support final element, be in alignment with each other and be reversed.In this way it is each switch include eight contacts, one
A two phase load of second level disconnects contactor in total include 16 contacts.
Such copper sheet share current mode significantly reduces contact repulsive force to reach more stable switch, smaller hair
Heat, will not melting welding under high nominal and short-circuit condition.
The problem of 200 amperes of two-stage kilowatt-hour meter load break contacts of this high current are brought is that the quantity of sheet body and contact is asked
Topic.The increase of sheet body needs higher-quality electrical conductor material (used here as copper), and the increase of number of contacts requires more preferably silver-colored
Contact, this just considerably increases cost.
GB2413703 patent is limited to geometric dimension and biplate set using the mode of simple parallel spring copper double-sheet arrangement
The distance between part sheet body relative to each other.Each biplate external member can generate certain mutual magnetic in the high current shared
Gravitation offsets the repulsive force of contact.This remains closed contact under short trouble state.There is space in contactor shell
Limit, it is a very difficult thing that biplate external member, which is installed as the ratio of correct counteracting force, to obtain detailed configuration.In 200 peaces
It trains in switch designs, the switching characteristic of needs can be reached using the sub-pieces group of opposing register.
Summary of the invention
Therefore, the present invention is directed to seek load power down setting on a kind of improvement is provided, be applied especially to 200 amperes
Electric contactor as defined in ANSIC12.1, meets structural requirement, service life and short-circuit ability to bear, at the same sheet body and contact can
It is applicable in the not high material of electric conductor performance.
First design according to the present invention, an electric contactor, including a pair of of first end, each end include having
The fixing piece of at least one stationary electrical contacts, stationary electrical contacts setting of the stationary electrical contacts on another first end；
A pair of of the second end, including multiple be arranged between setting electric conductor movement cantilever part, the multiple movement cantilever part are insulated
Separator；Each the second end is associated with one of end of the first end respectively, and the movement of each the second end is outstanding
It include the mobile electric contact towards corresponding stationary electrical contacts setting in arm-piece；The fixing piece and movement cantilever part are set as when touching
When point closure, by forming mutual expelling force backwards to the inverse current of setting movement cantilever part, to force movement cantilever part away from each other,
To increase the active force between stationary electrical contacts and mobile electric contact.
Preferably, each movement cantilever part includes the end extension extended to the mobile electric contact distal end.The present invention
In, each end extension is arranged to the separator detour.End extension assistance prevent moving contact with fixed contact
It rebounds when closure.It by interior curved end extension, preloads or prebias makes moving contact more controllable, be formed simultaneously tight
The electric contact shape gathered.
Preferably, electric contactor further includes the actuator for being provided with outwardly biased device, by each end extension to
Outer bias.Outwardly biased device includes along the drive casting die for moving cantilever part longitudinal movement.Driving casting die is preferably one by end
Movement cantilever part is pressed to the stationary electrical contacts with this by the wedge element of the outside bias of extension.
Preferably, externally the trend that can rotate inward when in use with mobile electric contact of bias unit offsets, wherein institute
Stating rotation is to make proximal end away from each other since movement cantilever part generates mutual expelling force in contact closure.
Preferably, actuator mould group includes inside bias unit to divide two movement cantilever parts from corresponding fixing piece
From to disconnect switch.In the present invention, inside bias unit includes reciprocating member, and the reciprocating member makes electricity when being in first position
Contact disconnects, and cantilever part is moved when the reciprocating member is in the second position can be freely moved to the fixing piece.Reciprocating member includes
At least one elongate column part is close to the mobile electric contact.In this way, passing through setting shoulder or other such as recesses or protrusion
Pressure-bearing device, inside bias unit can drive each movement cantilever part to optimize contact break function.
Actuator mould group is preferably comprised sliding seat, and sliding seat is mobile to the first movement cantilever part, described to be biased inwardly
It sets device and outwardly biased device is arranged on the sliding seat, mobile electric contact is disposed there between.Sliding seat is preferably
It is movably disposed on connector shell pedestal, but roller bearing or other revolving parts can also be applied to further decrease quiet rub
Power is wiped, and changes the size of actuator.
The two sides of separator are arranged at least two movement cantilever parts, and at least two movement cantilever parts have different transverse directions
Length.In this way, the moving contact on different motion cantilever part can be different size.Preferably, at least two movement cantilever parts
Wider arm be preloaded as first when corresponding mobile electric contact and the first stationary electrical contacts supported by corresponding fixing piece are closed
It is closed, the relatively narrow arm of at least two movements cantilever part is consolidated in corresponding mobile electric contact and by the second of corresponding fixing piece support
Lag closure is preloaded as when fixed electrical contacts closed.This helps to reduce loss on the moving contact of lag, can subtract in this way
Noble metal quantity on few respective moving contact.
Second design according to the present invention, provides the two poles of the earth electric contactor, the electric contactor includes: a pair of of first end
Part device and the second end device；Each first and second end fitting includes the first end for being provided with fixing piece, described solid
Determining part includes stationary electrical contacts；Each first and second end fitting includes the second end for being provided with conductor motion cantilever part,
It include the mobile electric contact in face of stationary electrical contacts setting on the movement cantilever part；The movement cantilever part of the second end is carried on the back
To setting, centre insertion separator, so that the mobile electric contact of each end fitting is set as in face of corresponding stationary electrical contacts.
The fixing piece and movement cantilever part of the end fitting are set as when the contacts are closed, passing through the phase backwards to setting movement cantilever part
Counter current forms mutual expelling force, to force movement cantilever part away from each other, to increase the stationary electrical contacts of end fitting and movable
Active force between electric contact.
Preferably, each the second end includes the side that the separator is arranged in at least two movement cantilever parts,
The other side of the separator is arranged at least two movement cantilever parts.In the present invention, at least two movements cantilever part packet
Narrow moveable arm and wide moveable arm are included, the width moveable arm arm is preloaded as when corresponding mobile electric contact and stationary electrical contacts are closed
It is closed first, the narrow moveable arm arm is preloaded as lag closure when corresponding mobile electric contact and stationary electrical contacts are closed.This
Sample, the moving contact on narrow moveable arm are less than the moving contact on wide moveable arm.It is achieved in lead-lag switch process
Preset value or preloading take this one or more movement cantilever parts and slightly lag behind advanced movement cantilever part closure, to reduce
Lag the abrasion in cantilever part.
Preferably, movement cantilever part includes that interior curved end extension extends to the distal end of moving contact.This can be
Common outwardly biased device is used between the movement cantilever part of setting.
The two poles of the earth electric contactor can also include the actuator apparatus for being set as disconnecting and being closed contact, the actuator apparatus
Including the movement biasing element for inwardly biasing the relatively fixed electric contact of interior curved end extension.By intrinsic movement
The opposing magnetic force of the moving contact distal end of cantilever part, closure contact cause to warp.In this way, prolonging using movable biasing element in end
The effect on part is stretched to offset this warp.
Preferably, the two poles of the earth electric contactor further includes depositing electromagnetic actuator for the twin-lock of switch contact.Reduce so logical
The electric time simultaneously saves cost.Single actuator provides power for all moving contacts, so that two switchgears be allowed to be powered.
Third is conceived according to the present invention, provides the single-phase electric contactor an of firewire and zero curve feed, electric contactor packet
It includes: first and second end fitting of firewire and first and second end fitting of zero curve；First He of firewire and zero curve
The first end of the second end device, the first end include the fixing piece for being provided with stationary electrical contacts；Firewire and zero curve
The second end of first and second end fittings, the second end include the electric conductor movement cantilever for being provided with mobile electric contact
Part, the mobile electric contact are set as towards corresponding stationary electrical contacts；The movement cantilever part of the second end is arranged backwards,
Centre insertion separator, so that the mobile electric contact of each end fitting is set as in face of corresponding stationary electrical contacts.The fire
The fixing piece and movement cantilever part of first and second end fittings of line and zero curve are set as when the contacts are closed, by setting backwards
The inverse current for setting movement cantilever part forms mutual expelling force, to force movement cantilever part away from each other, to increase firewire and zero curve
The first and second end fittings stationary electrical contacts and mobile electric contact between active force.It in this way can be in external loading
Firewire and zero curve form complete electrical isolation on one side.
4th design according to the present invention, provides a kind of mobile electric contact device for electric connector, electrical contact arrangement
Cantilever part is moved including the electric conductor backwards to setting, the cantilever part is electrically insulated separator and separates, each cantilever part association one
Mobile electric contact is arranged in a fixing piece, each cantilever part, and each fixing piece includes stationary electrical contacts, the stationary electrical contacts direction
Stationary electrical contacts on another fixing piece are arranged and engage with the mobile electric contact faced, in this way, when the contacts are closed, passing through back
Mutual expelling force is formed to the inverse current of setting movement cantilever part, to force movement cantilever part away from each other, to increase fixed electricity
Active force between contact and mobile electric contact.
Preferably, at least two movement cantilever parts are arranged in separator two sides alignment relative.At least two movement cantilever parts
In first cantilever lateral length less than second cantilever lateral length.In the present invention, the of the first movement cantilever part
The size of one mobile electric contact is less than the second moving contact on the second movement cantilever part.
Further, electrical contact arrangement further includes that end extension curved in mobile electric contact distal end is arranged in, with
Rotational bias is offset when contact closure, the electrical contact arrangement further includes that the terminal abutment part of excurvation is located at the remote of moving contact
End is with break contact.
5th design according to the present invention provides a kind of method for preventing electric contact from breaking down in closure, comprising:
End extension is arranged in the distal end of mobile electric contact on electric contact relative motion cantilever part；One movable biasing member is set,
Moving contact shifts to the offset position against each end extension when being closed with corresponding fixed contact；In this way, working as contact closure
When, by forming mutual expelling force backwards to the inverse current of setting movement cantilever part, to force movement cantilever part in mobile electric contact
Away from each other, the end electric contact of mobile electric contact distal end is to prevent contact from breaking down for distal end.
6th design according to the present invention provides a kind of control rotation and steps up to improve electrical contacts closed effect method,
It include: the distal end setting end extension of the mobile electric contact on electric connector relative motion cantilever part；Setting one movable
Biasing member shifts to the offset position against each end extension when moving contact is closed with corresponding fixed contact, in this way, working as
When contact closure, by forming mutual expelling force backwards to the inverse current of setting movement cantilever part, to force movement cantilever part movable
The distal end of electric contact is away from each other to make the relatively fixed electric contact bending of mobile electric contact；Prolong the end of mobile electric contact distal end
Part is stretched with the movement tendency of mobile electric contact on the contrary, to bend and keep the parallel engagement between contact.
7th design according to the present invention provides a kind of method for reducing contact wear, comprising: in mobile electric contact device
One or more first movement cantilever parts are preloaded, with the first stationary electrical contacts supported in its mobile electric contact with corresponding fixing piece
Electric contact is lagged when closure, while preloading one or more first movement cantilever parts, to consolidate in its mobile electric contact with corresponding
Determine to keep electric contact advanced when the second stationary electrical contacts closure of part support.
Preferably, preload one or more movement cantilever parts with advanced when relevant contacts disconnect, while preload one or
Multiple movement cantilever parts are with the lag when relevant contacts disconnect.
In the present invention, above-mentioned optimum condition on the basis of common knowledge of the art can any combination to get of the invention each
Preferred embodiment.
Detailed description of the invention
Fig. 1 shows the schematic top plan view of the two poles of the earth electric contactor according to a first embodiment of the present invention, wherein at contact
In closed state；
Fig. 2 is equally the schematic top plan view at the two poles of the earth electric contactor shown in Fig. 1, and wherein contact is in an off state；
Fig. 3 is equally the schematic top plan view at the two poles of the earth electric contactor shown in Fig. 1, and wherein electric contactor is in circuit and is in moderate
Short circuit or dead short state；
Fig. 4 is the tip side schematic diagram of the removable arm of the end at the two poles of the earth electric contactor shown in Fig. 1
Fig. 5 and Fig. 6 shows the schematic top plan view of the two poles of the earth electric contactor according to a second embodiment of the present invention, wherein contact point
Other places are in open and close state；
Fig. 7 shows the schematic top plan view of the two poles of the earth electric contactor according to a third embodiment of the present invention, wherein forming single-phase electricity
Contactor is connect with firewire and zero curve.
Specific embodiment
The present invention is illustrated in a manner of various embodiments with reference to the accompanying drawings.In Figure of description, there is similar knot
Structure or the element of function will be indicated with identical component symbol.Component sizes and feature in attached drawing only to facilitate explanation and
Each embodiment of the invention is disclosed, is not intended to carry out the present invention exhaustive explanation, nor to the scope of the present invention
It is limited.
Referring initially to Fig. 1 to Fig. 4, the two poles of the earth electric contactor 10 under first embodiment includes two first ends 12, and two
The second end 16, an insulator spacer 24 and an actuator 26.Each first end 12 includes lining made of conductive material
Layer fixing piece 14.Each the second end 16 includes end body 18, and Cong Duanti 18 stretches out made of multiple conductor materials backwards to setting
Move cantilever part 20,22.Insulator spacer 24 is placed between the movement cantilever part 20 and 22 of setting.Actuator 26 is corresponding solid
Determine the moving movement cantilever part 20 and 22 simultaneously of part 14.
First end 12 and the second end 16 are arranged on the pedestal 28 of shell.Its shell has been omitted in figure.Each
The first end pad 32 of first end 12 and the second end pad 34 of each the second end 16 are spaced phase from housing base 28
The position of opposite ends is stretched out.
Electric conductor fixing piece 14 is stretched out from the proximal vertical of first end pad 32.
Multiple stationary electrical contacts 36 are arranged in the terminal position or end neighbouring position of each fixing piece 14.In the present embodiment
In, the quantity of electric contact 36 is odd number, is three.However, it may be necessary to apply two or more than three stationary electrical contacts 36.
The stationary electrical contacts 36 of each first end 12 are arranged towards inside, and each stationary electrical contacts 36 are opposite with it another
Stationary electrical contacts 36 on first end 12 are aligned.
Fixing piece 14 is preferably made of electrical conductor material, and such as certain metal, such as copper, these fixing pieces be can be itself
Non-conductor.In this way, stationary electrical contacts 36 can transmit electric energy, such as the cable being attached to individual electric conductor.
End body 18 on each the second end 16 includes the second end pad 34 at or adjacent to the free terminal in it,
Electric conductor moves the preferably perpendicular or generally perpendicular proximal end for stretching out arrival end body 18 of cantilever part 20 and 22.In the embodiment, fortune
The proximal end or near proximal ends of dynamic cantilever part 20 and 22 and end body 18 pass through rivet or welded connecting.But the second end 16 can also
To be integrated formed structure, it can also be and intermeshed by other suitable mode.
The quantity for moving cantilever part 20 and 22 is odd number in the present embodiment, is three, each movement cantilever part includes can
Dynamic electric contact 38, mobile electric contact 38 are arranged partially along movement cantilever and separate with its free terminal.Move cantilever part 20
With 22 quantity and the quantity Matching of stationary electrical contacts 36.Therefore, the quantity of one, two or greater than three movement cantilever part is same
Sample can be applicable in.
In this embodiment, mobile electric contact 38 is in alignment with each other as stationary electrical contacts 36.
Each fixed mobile electric contact 38 is arranged outwardly, and is mounted on midpoint and the freedom of corresponding movement cantilever part 20 and 22
Between end.The movement corresponding on another the second end 16 of the mobile electric contact 38 of one movement cantilever part 20 and 22 is outstanding
Another mobile electric contact 38 alignment in arm-piece, and be set as towards their corresponding fixed contacts 36.
In this embodiment, a pair of aforementioned first movement cantilever part 20 and aforementioned second movement cantilever part 22 extend in parallel,
Each cantilever part is towards being arranged on the inside of fixing piece 14.Each first movement cantilever part 20 includes a lateral length, this is laterally long
Spend the lateral length less than the second movement cantilever part 22.And their longitudinal length is equal or of substantially equal.
The lateral length of each first movement cantilever part 20 is all equal or roughly equal, and lateral length can be along them
Corresponding longitudinal length is consistent or almost the same.
Preferably, the movable electricity of the mobile electric contact 38a of wider movement cantilever part 22 narrow movement cantilever part 20
Contact 38b size is bigger.
Each movement cantilever part 20,22 is set as bending, including along the setting of partial-length direction and close to movable electricity
The beveled shoulder 40 of contact 38.The elastomer 42 that repels each other is set between shoulder 40 and the proximal end of each movement cantilever part 20,22.
In some cases, movement cantilever part is not necessarily made of an electrically conducting material, such as copper, and it is logical to take this mobile electric contact
Cross individual electric conductor transmitting electric energy.In the present embodiment, opposite to require to produce between the movement cantilever part 20 and 22 of setting
Raw mutual expelling force, therefore move cantilever part and be preferably conductor material.
End extension 44 extends to each movement cantilever part 20 and 22 distal ends and forms an end.End extension 44
A preferably elongated handle far from corresponding fixing piece 14 and is inwardly formed angle, is usually close to insulator spacer 24.
The lateral length of end extension 44 can be less than the lateral length of each movement cantilever part 20 and 22, most optimally to offset phase
Denounce induction bending caused by elastomer 42.
Actuator 26 is preferably comprised twin-lock and deposits electromagnetic solenoid actuator 46 and sliding seat 48, and sliding seat 48 preferably may be used
To be made of low friction polymer material.It may include two-part shell 50 that twin-lock, which deposits actuator 46, and relative spacing is arranged inside
Magnetic plug 52 is set, and plate-like ferrite lattice is arranged in top layer and bottom, and plunger 56 can be driven to deliver actuating arm (or driving bolt)
58。
The actuator compartment for being dimensioned to closely fill in casing base 28 of actuator shell 50.Electronics is arranged in one end
Input connector is to connect the out connector transmitted electricity from electric connector 10.
Preferably, solenoid actuator 46 can be set in the non-center position of casing base 28, as shown in the figure.Pass through extension
One of fixing piece 14 the second end pad 34 corresponding with its, sliding seat 48 can be operated from one end.Thus may be used
So that shell holder structure is simpler, to save material.
The lower section of the insulator spacer 24 on casing base 28 is arranged in sliding seat 48, and insulator spacer 24 is in the present embodiment
Facility is between movement cantilever part 20 and 22.
Sliding seat 48 includes separation member 62 and drive casting die 64.Separation member 62 is preferably made of insulating materials, such as plastics.
Separation member 62 is a upright elongate shaped element in the present embodiment, and each movement for corresponding to 24 two sides of insulator spacer is outstanding
Arm-piece 20 and 22.Each separation member 62 is engaged with corresponding shoulder 40, is thus exerted a force to movement cantilever part 20 and 22, thus
Electric contact 36 and 38 is set to keep predetermined gap.
Although column separation member 62 be preferably a plunger or roller bearing, it is other by sliding seat 48 support it is suitable inwardly
Biasing device is applied both to contact 36 and 38.
Driving casting die 64 is the upright wedge element divided equally by insulator spacer 24 in the present embodiment.It is each to peripheral hardware
The wedge surface set is rendered as an inclined-plane, and interior curved hooked end extension 44 can the sliding when sliding seat 48 extends and retracts.
When sliding seat 48 is in appropriate location, twin-lock deposits the shape that the driving bolt 58 on actuator 46 is housed on protrusion 72
At bolt it is intracavitary, protrusion 72 formed sliding seat 48 partial sidewall.Movement cantilever part 20 and 22 backwards to setting is along continuous
Continual separator 24 is cantilevered out to extend through sliding seat 48.Preferably, movement cantilever part 20 and 22 and separator 24 are in sliding seat 48
On do not contact, thus sliding seat 48 be performed device 46 drive when reduce frictional force.
In this set, the fixed contact 36 being arranged inwardly is parallel with the moving contact 38 being arranged outwardly or substantially flat
Row, and be co-located on separation member 62 substantially and drive on the public face between casting die 64.Shoulder 40 is oppositely arranged with separation member 62,
End extension 44 is engaged with the inclined surface for driving casting die 64.
Referring to fig. 4, the present embodiment is preferably using multiple moving contact 38a and 38b to divide equally nominal current or failure shape
Short circuit current under state.In this embodiment, single larger moving contact 38a setting is smaller movable on movement cantilever part 22
Contact 38b is arranged on each movement cantilever part 20.
Used contact includes that enough top layer silver alloy thickness is very important, this makes it possible to resist switch and cuts
The active force and appended dust changed, is reduced friction loss with this.What the prior art above-mentioned using 16 contacts used
The thickness of top layer silver alloy is in the bimetal contact of 8mm diameter in 0.65mm into 1.0mm range.This results in considerable
Noble metal cost.
So the electric contact 10 that the present invention uses is applicable in several groups backwards to movement cantilever part 20 and 22 to reduce contact 36 and 38
Quantity, electric contact 10 includes advanced or lag step.In the present arrangement, each wider movement cantilever part 22 is set as switching
Advanced cantilever, relatively narrow movement cantilever part 20 are set as switching hysteresis cantilever, and movement cantilever part 20 and movement cantilever part 22 are disconnected
Alignment is in same plane when opening.
In this way, the diameter of the wider moving contact 38a of movement cantilever part 22 can be set to 8mm, the setting of top layer silver region
For 0.8mm.But as long as the thermal mass of movement cantilever part 20 and 22 is enough, move the smaller moving contact 38b's of cantilever part 20
Diameter can be set to 6mm, and top layer silver region is set as 0.4mm.Since switching hysteresis cantilever 20 is not subject to rushing for load current
Hit, be lost as minimum limit, such quilting material can under the premise of not losing performance and service life size reduction.
In order to solve the adhesion welding problems between contact under short-circuit high load capacity, special compound top layer can be used
70, tungsten oxide additive is added to silver alloy matrix in this embodiment.Being conducive to advanced the larger of cantilever 22 so significantly can
Movable contact 38a.
Tungsten oxide additive, which is added, in silver alloy matrix can bring many important features and benefit.Wherein its heavy sound more homogeneous
Top level structure, more uniformly glue and close erosion surface, but not generate the region Fu Yin.To prevent adhesion melting welding；Tungsten oxide adds
Add agent to improve the bath temperature of switching point, also further resists melting welding；Due to the tungsten oxide additives ratio in top layer mass
Rationally, cost is saved under given thickness.
Using driving casting die 64 and/or moving the preloading of cantilever part 20 and 22, the switch process of lead-lag can be pre-
First formulate, during the pulsed drive for depositing actuator 46 in twin-lock in this way, it is wider movement cantilever part 22 moving contact 38a with
It is answered between the closure of corresponding fixed contact 36 and the moving contact 38b and the closure of corresponding fixed contact 36 that move 20 groups of cantilever part
Postponed with the split time of restriction.
In operation, as shown in figure 1 shown in arrow A, twin-lock, which deposits actuator 46 and is driven onto the first end 74 of casing base 28, to be reached
First locked position, so that moving contact 38 and fixed contact 36 are closed, wherein contact closure preferably by it is above-mentioned it is advanced/
The switch process of lag is realized.Since movement cantilever part 20 and 22 does not preload or spring bias always is close to corresponding
Fixed contact 36, the movement of sliding seat 48 causes wedge-shaped drive casting die 64 to advance that contact 34 and 36 is forced to be closed, such as Fig. 1 arrow
Shown in head B.
In the present invention, first group of movement cantilever part 20 and 22 in 24 first side of separator is set as electric current in first party
It moves upwards, as shown by arrow C, opposite first group of second group of movement cantilever part 20 and 22 in 24 second side of separator is set as
Electric current is moved upwards in the second party opposite with electric current first direction, as shown by arrow D.In this way, moving contact 38 is in the bullet that repels each other
Property body 42 proximal end generate repulsion, cause to be bent outwardly, so increase closure contact 36 and 38 closing force.
But as shown in figure 3, the elastomer 42 that repels each other generates enough opposing magnetic forces under significantly short trouble state
So that the elastomer 42 that repels each other is bent outwardly, to generate very high contact closure power, as shown by arrow E.This is by movement cantilever
The mutual expelling force that the bending of part 20 and 22 generates potentially causes the relatively fixed contact 36 in 38 proximal end of moving contact to tilt, such as arrow F institute
Show, to form not parallel position.For this purpose, end extension 44 curved in 36 distal side of moving contact is set
By driving the support of casting die 64 by rotary force to form the outside rotary force in 36 distal side of moving contact, as shown by arrow G.
As shown in the arrow H in Fig. 2, reach second when twin-lock deposits actuator 46 and is driven to the second end 76 of casing base 28
Locked position, the movement of sliding seat 48 cause separation member 62 to move to pull open drive casting die 64 to the direction engaged with shoulder 40,
As shown by arrow I.This forces movement cantilever part 20 and 22 to relatively move, and such separator 24 forces contact 36 and 38 to separate.
End extension 44 can be moved by driving casting die 64 and support, prevents contact when contact closure former with this
A possibility that barrier.When short circuit current is very high, such as when alternating current peak value, this is a problem very serious.Move cantilever
Bending of the part 20 and 22 in the case where the elastomer 42 that repels each other acts on may be very big, and closure contact force makes moving contact 38 solid from corresponding to
It springs back or removes at fixed contact 36.This may cause instantaneous switch and disconnects, with potential destructive quick-fried along spot welding position
Fried formula consequence.The end for driving casting die 64 positions so that moving contact 38 is moved to and the controllable contact of corresponding fixed contact 36, guarantor
Hold the closure of contact 36 and 38.Contact making device 78 includes fixed contact 36 and moving contact 38, and the service life subtracts to be extended
A possibility that few contact 36 and 38 is removed.
In compared with the prior art biplate setting, the present invention in movement cantilever part 20 and 22 by end extension 44,
Corresponding separation member 62 and the utilization for driving casting die 64, what be can be set is shorter, narrower and thinner.In this way, compared with the prior art significantly
Save conductor material, for the nominal switch resistance of movement cantilever part 20 and 22 down within 0.1 milliohm, this is existing skill in this way
The half of the resistance value of the double-sheet arrangement setting of art.
Due to using improved movement cantilever part 20 and 22 to reduce resistance value, the first and second ends 12 and 16 are respective
The material thickness of end pad 32 and 34 becomes relatively thin fold blank from the relatively thick stock material of traditional processing with the thickness for the standard of catering to
Degree requires.Reduce the volume of electrical conductor material in this way while keeping between pad and pad less than the resistance value of 0.2 milliohm.
Separation member 62, which is preferably provided as that cantilever part 20 and 22 will be moved, to be opened into the preset range of 0.6mm to 1.0mm,
Requirement is disconnected to reach the contact of voltage failure.Casting die 64 is driven preferably to be set as being greater than by the intensifying force being preset on each contact
Or it is equal to 500 gram forces.
Refering to Fig. 5 and Fig. 6, shown here as the second embodiment of the two poles of the earth both ends electric contactor.With similar structures or function
The element of energy will be indicated with identical component symbol, to omit some specific descriptions.
In the present embodiment, electric contactor 10 still includes two first ends 12 and two the second ends 16.Each first
End 12 includes fixing piece 14.Each the second end 16 includes the movement cantilever part group 20 and 22 backwards to setting.Insulator spacer
24 are vertically arranged between the movement cantilever part 20 and 22 of setting.The corresponding fixing piece 14 of actuator 26 carrys out moving movement cantilever
Part 20 and 22.
But in this embodiment, end extension is removed, and is correspondingly driven casting die and is also removed.In this way, sliding seat 48
Separation member 62 is supported, takes this separator 24 and at least partly movement cantilever part 20 and 22 extends to above sliding seat 48, is placed in point
The centre of off member 62.
Every group of movement cantilever part 20 and 22 is so as to which with preforming, the mode of precompressed or prebias makes corresponding movable electricity touching
Point 38 is outwardly towards corresponding stationary electrical contacts 36.In this way, in the case where moving cantilever part 20 and 22 not by external force separation,
Moving contact 38 is engaged with fixed contact 36.
It is appreciated that contact is closed under normal circumstances from Fig. 5, while separation member 62 opens them together with shoulder 40
It opens.With the mutual expelling force that the inverse current movement for the elastomer 42 that repels each other generates, preforming, the precompressed or pre- inclined of movement cantilever part group
The degree set can determine size of the contact force under normal current.In this way, electromagnetic actuator or other actuator apparatus are only
It need to be a single locking device.For example, actuator can use a coil and restore the setting of spring, rather than aforementioned implementation
Double space driving coil in example.
Refering to Fig. 7, shown here as the 3rd embodiment of electric contactor.Element with similar structures or function equally uses phase
Same component symbol indicates, to omit some specific descriptions.
In the present embodiment, electric contactor 10 is a single-phase firewire and zero curve electric contactor, is particularly suitable for main circuit confession
Can, such as household and business demand.Single-phase electric contactor 10 still includes two first ends 12 and two the second ends 16.Often
A first end 12 includes fixing piece 14 and connect with external loading.Each the second end 16 includes the movement cantilever backwards to setting
Part group 20 and 22 is simultaneously connect with firewire and zero curve.Insulator spacer 24 is vertically arranged at 20 He of movement cantilever part group backwards to setting
Between 22.The corresponding fixing piece 14 of actuator 26 carrys out moving movement cantilever part 20 and 22.
In this configuration, the end of the corresponding moving contact 38 of movement cantilever part 20 and 22 is arranged in end extension 44,
The sliding seat 48 of actuator triggering is with first embodiment support separation member 62 and drives casting die 64.But it is advantageous in that, passes through
Movement cantilever part prebias can be removed in the position of contact closure, end extension and drive casting die as second embodiment
It goes.In this way, inverse current movement drives the elastomer 42 that repels each other mutually exclusive, so that the closure between fixed contact and moving contact
Power increases.
The single-phase electric contact of firewire and zero curve feed has particular benefit in that such external loading can be complete in short circuit
Electrical isolation.
Movement cantilever part can be set to preparatory closing or opening.If being preloaded into contact closure condition, separation member is then
When contact disconnects, bias moves cantilever part to separately.If being preloaded into contact off-state, then bias movement is outstanding for separation member
Arm-piece is to increase the power between closure contact.
Although end extension is preferably from fixing piece to separator internal motion, end extension is also possible to straight.This
Sample, although driving, casting die is preferably wedge-shaped, and other suitable bias units are equally applicable, while single bias dress can also be applied
It sets so that cantilever part will be moved to corresponding fixed contact bias.
In addition, contact making device is with two movement arms different back to width on the contrary, but other quantity and setting are same
It can be applicable in.For example, if you do not need to lead-lag switching process, every group of swing arm then can be same widths, while having same
The moving contact of sample ruler cun.Similarly, if necessary to lead-lag switching process, every group of swing arm then can be set to different width
Degree.
In lead-lag switch setting, the switch leading arm of initial closed circuit undertakes a few microsecond electric currents, until switch
Lagging leg is also closed.In this way, wider switch leading arm makes the thermic load normalization on arm.With all contact closures, own
Arm and contact share all loads jointly, thus reach low resistance and voltage decline.
In addition, preferably wider second movement arm is in contact closure procedure in lead-lag switch setting
Before switch leading arm, slightly lagged in disconnection process relative to the first relatively narrow movement arm.Wider second movement
Arm reduces contact between relatively narrow first movement arm to bear a few microsecond electric currents as the first relatively narrow movement arm disconnects in this way
Electric arc, to limit the heat transfer in arm.
It is preferably corresponding with wide arm across the wide arm of separator for moving in cantilever part 20 and 22, and narrow arm and narrow arm are corresponding.Due to
Opposite electric current generates equal repulsive force, this facilitates the power that each arm offsets generation in the short-circuit state.
For the single-phase electric contact of Live line Zero line feed, although switching process using lead-lag as far as possible.In first and
First switch zero curve before the firewire of two ends, electric arc can be prevented or reduce, to improve the service life of moving contact.
For balance purpose and hot ability to bear, although same operation side is arranged in the contact sets preferably in separator two sides
Formula, but can also be closed at or disconnect in the other side using lead-lag process in side.
Although all embodiments all use wedge element so that it is moved out closed circuit with bias movable arm and contact,
Other equipment that bias executes closed circuit function suitable outward can be equally applicable in.For example, swing arm shoulder to inscribed
The scheme for touching supporter, block, plugs or shaft-like object is applicable.
In general, the element that swing arm separates or polymerize can be integrally formed, while sliding seat and solenoid plunger are solid
Fixed connection selects suitable actuator size and stroke to reach required and close the switch/break function.However, it is also possible to
Use the actuator plan of establishment acted directly on swing arm.
The element acted directly on swing arm can be mobile by any convenient execution equipment.Any suitable power is equal
It is applicable, such as sliding seat can be driven by motor, and can also be driven by other mechanical devices including hand lever.
The present invention provides electric contactors, especially the two poles of the earth both ends electric contactor as a result, using backwards to setting electric conductor
Movement arm and current in opposite are to be closed contact using it using inherently opposing magnetic force.In addition, relative to existing skill
Art, the present invention provide a kind of electric connector of 12 contacts, rather than 16 contacts, this reduces cost and are conducive to
Previous examples.In addition, realize share current by the way that the multipair swing arm scheme backwards to alignment setting is arranged, less electric conductor
The use of material, while reducing the resistance value of each switch.Since every group of swing arm quantity is identical with corresponding lateral length, touching
The balance of point is simplified.By the way that corresponding swing arm is arranged, in closing course, the quilting material thickness of some moving contacts is obtained
To reduction (more referring to narrow arm here), to lag behind wider advanced swing arm.Process is switched by lead-lag, can be incited somebody to action
Switch is complete to be opened and closed with the self-heating control between the smallest voltage drop and swing arm in acceptable range, and then eradicates touching
Molten bath and melting welding in point.By the way that end extension is arranged on swing arm, more controllable contact closure power can also be obtained, simultaneously
Prevent contact fault.By carrying out bias and support with drive casting die to distal extension, moving contact is for corresponding fixed touching
The positioning of point is strengthened.The reduction of swing arm size also forms smaller shell, uses iron oxygen in electromagnetic actuator when necessary
Magnet body deposits setting to reduce cost and obtain twin-lock.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.In the present invention, above-mentioned optimum condition exists
Meet on the basis of common sense in the field can any combination to get each preferred embodiment of the present invention.
Those skilled in the art without departing from the principle and essence of the present invention, can be to these embodiments
Various changes or modifications are made, but these change and modification are each fallen in protection conception range of the invention.
Claims (30)
1. a kind of electric contactor, which is characterized in that the electric contactor includes:
A pair of of first end, each first end include the fixing piece that at least one stationary electrical contacts is arranged, the fixation
Stationary electrical contacts setting of the electric contact on another first end；
A pair of of the second end moves cantilever part including multiple electric conductors backwards to setting, sets between the multiple movement cantilever part
Set insulator spacer；
Each the second end with one of association of the first end, wraps on the movement cantilever part of each the second end respectively
Include the mobile electric contact towards corresponding stationary electrical contacts setting；
The fixing piece and movement cantilever part are set as when the contacts are closed, passing through the inverse current backwards to setting movement cantilever part
Mutual expelling force is formed, to force movement cantilever part away from each other, to increase the effect between stationary electrical contacts and mobile electric contact
Power；
Wherein being located at the insulator spacer movement cantilever part on opposite sides includes close to the of the mobile electric contact
The second part of a part and the separate identical mobile electric contact；Liang Ge first part is relative to each other, two second parts
It is same relative to each other；The mutual expelling force that Liang Ge first part generates is greater than by the mutual expelling force that two second parts generate.
2. electric contactor as described in claim 1, wherein each movement cantilever part includes prolonging to the mobile electric contact distal end
The end extension stretched.
3. electric contactor as claimed in claim 2 is arranged wherein the end extension is bent to the separator.
4. electric contactor as claimed in claim 2 or claim 3, wherein the electric contactor further includes actuator mould group, the execution
Device mould group includes outwardly biased device with by the outside bias of each distal extension.
5. electric contactor as claimed in claim 4, wherein the outwardly biased device includes that cantilever part is longitudinal to be transported along moving
Dynamic drive casting die.
6. electric contactor as claimed in claim 5, wherein the drive casting die is a wedge by the outside bias of end extension
Movement cantilever part is pressed to the stationary electrical contacts with this by the very best part.
7. electric contactor as claimed in claim 5, wherein the end rotation side of the outwardly biased device and movement cantilever part
To offseting, repel each other wherein the rotation refers to since movement cantilever part generates mutual expelling force in contact closure and generates proximal end each other
Power.
8. electric contactor as claimed in claim 4, wherein the actuator mould group includes for that will move cantilever part from correspondence
The inside bias unit that stationary electrical contacts separate to break contact.
9. electric contactor as claimed in claim 8, it is biased inwardly that set device include reciprocating member wherein described, the reciprocating member is in
Disconnect electric contact when first position, cantilever part is moved when the reciprocating member is in the second position can be freely moved to the fixation
Part.
10. electric contactor as claimed in claim 9, wherein the reciprocating member includes at least one elongate column part described in
Mobile electric contact.
11. electric contactor as claimed in claim 8, wherein the actuator mould group includes sliding seat, the sliding seat is to
The one movement cantilever part is mobile, and the inside bias unit and outwardly biased device are arranged on the sliding seat, it is described can
Dynamic electric contact is disposed there between.
12. electric contactor as described in claim 1, wherein at least two movement cantilever part is arranged in the two of the separator
Side, at least two movements cantilever part have different lateral lengths.
13. electric contactor as claimed in claim 12, wherein the mobile electric contact of each movement cantilever part is different big
It is small.
14. electric contactor as claimed in claim 13, wherein the wider arm in at least two movements cantilever part is in correspondence
Mobile electric contact and the first stationary electrical contacts supported by corresponding fixing piece are preloaded as being closed in advance when being closed, and described at least two
Relatively narrow arm in a movement cantilever part is closed in corresponding mobile electric contact and the second stationary electrical contacts supported by corresponding fixing piece
When be preloaded as lag closure.
15. the two poles of the earth electric contactor, which is characterized in that the electric contactor includes:
A pair of of first end device and a pair of of the second end device；
Each first and second end fitting includes the first end for being provided with fixing piece, and the fixing piece includes fixed electricity touching
Point；
Each first and second end fitting includes the second end for being provided with conductor motion cantilever part, on the movement cantilever part
Including the mobile electric contact in face of stationary electrical contacts setting；
The movement cantilever part of the second end is backwards to being arranged, and separator is inserted into centre, so that the movable electricity of each end fitting
Contact is set as in face of corresponding stationary electrical contacts, and wherein at least two movement cantilever part is set in separator two sides alignment relative
It sets；
The fixing piece and movement cantilever part of the end fitting are set as when the contacts are closed, by backwards to setting movement cantilever part
Inverse current formed mutual expelling force, with force movement cantilever part away from each other, thus increase end fitting stationary electrical contacts and
Active force between mobile electric contact.
16. the two poles of the earth electric contactor as claimed in claim 15, wherein each the second end includes that at least two movements are outstanding
The side of the separator is arranged in arm-piece, and the other side of the separator is arranged at least two movement cantilever parts.
17. the two poles of the earth electric contactor as claimed in claim 16, wherein at least two movements cantilever part includes narrow moveable arm
With wide moveable arm, the width moveable arm is preloaded as being closed in advance when corresponding mobile electric contact and stationary electrical contacts are closed, institute
It states narrow moveable arm and is preloaded as lag closure when corresponding mobile electric contact and stationary electrical contacts are closed.
18. the two poles of the earth electric contactor as claimed in claim 17, wherein the moving contact on the narrow moveable arm is less than width movably
Moving contact on arm.
19. such as the described in any item the two poles of the earth electric contactors of claim 15-18, wherein the movement cantilever part includes the end of bending
Extension is held to extend to the distal end of moving contact.
20. the two poles of the earth electric contactor as claimed in claim 19, wherein the electric contactor further includes being set as disconnecting and being closed
The actuator apparatus of contact, the actuator apparatus include the fortune for inwardly biasing the relatively fixed electric contact of end extension
Dynamic biasing element.
21. the two poles of the earth electric contactor as claimed in claim 20, wherein the electric contactor further includes for the double of switch contact
Latch electromagnetic actuator.
22. the single-phase electric contactor of a kind of firewire and zero curve feed, which is characterized in that the electric contactor includes:
One the first and second end fitting of firewire and first and second end fitting of zero curve；
The first end of first and second end fittings of firewire and zero curve, the first end include being provided with stationary electrical contacts
Fixing piece；
The second end of first and second end fittings of firewire and zero curve, the second end include being provided with mobile electric contact
Electric conductor move cantilever part, the mobile electric contact is set as towards corresponding stationary electrical contacts；
For the movement cantilever part of the second end backwards to being arranged, the separator being vertically arranged is inserted into centre, so that each end fills
The mobile electric contact set is set as in face of corresponding stationary electrical contacts；
The fixing piece and movement cantilever part of first and second end fittings of the firewire and zero curve are set as when the contacts are closed,
By forming mutual expelling force backwards to the inverse current of setting movement cantilever part, to force movement cantilever part away from each other, to increase
Active force between the stationary electrical contacts and mobile electric contact of first and second end fittings of firewire and zero curve.
23. a kind of mobile electric contact device for electric connector, which is characterized in that the electrical contact arrangement includes backwards to setting
Multiple electric conductors move cantilever part, the electrical isolation separator that the cantilever part is positioned essentially vertically in relation to one another separates, each cantilever part association
Mobile electric contact is arranged in one fixing piece, each cantilever part, and each fixing piece includes stationary electrical contacts, the stationary electrical contacts court
Stationary electrical contacts on another fixing piece are arranged and engage with the mobile electric contact faced, in this way, when the contacts are closed, passing through
Inverse current backwards to setting movement cantilever part forms mutual expelling force, to force movement cantilever part away from each other, to increase fixation
Active force between electric contact and mobile electric contact, wherein at least two movement cantilever part are set in separator two sides alignment relative
It sets.
24. mobile electric contact device as claimed in claim 23, wherein being located at isolation in at least two movements cantilever part
The lateral length of the cantilever of part side is less than the lateral length of the cantilever positioned at the separator other side.
25. mobile electric contact device as claimed in claim 24, wherein the ruler of the mobile electric contact of relatively narrow movement cantilever part
The very little moving contact less than on wider movement cantilever part.
26. such as the described in any item mobile electric contact devices of claim 23-25, wherein the electrical contact arrangement further includes setting
The curved end extension in mobile electric contact distal end, to offset rotational bias, the electric contact dress in contact closure
Set further includes that the terminal abutment part of excurvation is located at the distal end of moving contact with break contact.
27. a kind of method for preventing electric contact from breaking down in closure, which is characterized in that the described method includes:
End extension is arranged in the distal end of mobile electric contact on electric contact relative motion cantilever part；
One movable biasing member is set, is shifted to when moving contact is closed with corresponding fixed contact against each end extension
Offset position；
In this way, when the contacts are closed, by forming mutual expelling force backwards to the inverse current of setting movement cantilever part, to force movement outstanding
Arm-piece the end of mobile electric contact away from each other, the end electric contact of mobile electric contact end to preventing contact from occurring therefore
Barrier.
28. a kind of control rotation steps up to improve electrical contacts closed effect method, which is characterized in that the described method includes:
End extension is arranged in the distal end of mobile electric contact on electric connector relative motion cantilever part；
One movable biasing member is set, is shifted to when moving contact is closed with corresponding fixed contact against each end extension
Offset position, in this way, when the contacts are closed, by forming mutual expelling force backwards to the inverse current of setting movement cantilever part, to force
Movement cantilever part is in the distal end of mobile electric contact away from each other to make the relatively fixed electric contact bending of mobile electric contact；
The end extension of mobile electric contact distal end and the movement tendency of mobile electric contact are on the contrary, to bend and keep touching
Parallel engagement between point.
29. a kind of method for reducing contact wear, which is characterized in that the described method includes:
One or more first movement cantilever parts are preloaded in mobile electric contact device, in its mobile electric contact and corresponding fixing piece
Support the first stationary electrical contacts closure when lag electric contact, while preload one or more first movement cantilever parts, with
Its mobile electric contact keeps electric contact advanced when being closed with the second stationary electrical contacts that corresponding fixing piece supports.
30. method as claimed in claim 29, wherein preloading one or more movement cantilever parts when relevant contacts disconnect
In advance, while one or more movement cantilever parts being preloaded with the lag when relevant contacts disconnect.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1312463.1 | 2013-07-11 | ||
| GB1312463.1A GB2516096B (en) | 2013-07-11 | 2013-07-11 | Electrical contactor |
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| CN104282496A CN104282496A (en) | 2015-01-14 |
| CN104282496B true CN104282496B (en) | 2019-04-23 |
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| CN201420382348.7U Active CN204230168U (en) | 2013-07-11 | 2014-07-10 | Electric contactor and the mobile electric contact device for electric contactor |
| CN201410328009.5A Active CN104282496B (en) | 2013-07-11 | 2014-07-10 | Electric contactor |
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| Country | Link |
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| US (1) | US9218919B2 (en) |
| CN (2) | CN204230168U (en) |
| GB (1) | GB2516096B (en) |
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| GB2516096B (en) * | 2013-07-11 | 2021-04-14 | Johnson Electric Int Ag | Electrical contactor |
| CN105047443B (en) * | 2015-08-06 | 2018-04-27 | 北京人民电器厂有限公司 | Contact system and low tension switch in low tension switch |
| GB201518367D0 (en) * | 2015-10-16 | 2015-12-02 | Johnson Electric Sa | Electrical contact switch and electrical contactor |
| CN109074986B (en) * | 2016-04-01 | 2021-02-05 | 德昌电机(深圳)有限公司 | Movable contact arm assembly for switch contactor |
| EP3396789B1 (en) * | 2017-04-27 | 2021-03-03 | Aptiv Technologies Limited | Connector for airbag restraint systems |
| CN107481894A (en) * | 2017-08-17 | 2017-12-15 | 海盐众信电子有限公司 | A kind of phase-selecting switch and its control method |
| CN110783147B (en) * | 2019-09-29 | 2021-03-23 | 华为技术有限公司 | Direct current contactor and car |
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- 2014-07-10 CN CN201420382348.7U patent/CN204230168U/en active Active
- 2014-07-10 CN CN201410328009.5A patent/CN104282496B/en active Active
- 2014-07-10 US US14/327,965 patent/US9218919B2/en active Active
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|---|---|
| CN104282496A (en) | 2015-01-14 |
| TWI644335B (en) | 2018-12-11 |
| US9218919B2 (en) | 2015-12-22 |
| GB2516096A (en) | 2015-01-14 |
| GB201312463D0 (en) | 2013-08-28 |
| TW201505057A (en) | 2015-02-01 |
| MX349061B (en) | 2017-07-06 |
| GB2516096B (en) | 2021-04-14 |
| CN204230168U (en) | 2015-03-25 |
| MX2014008406A (en) | 2016-07-08 |
| US20150015348A1 (en) | 2015-01-15 |
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